supplements) ^ ATC/DDD Index 2014: code D09, WHO Collaborating Centre for Drug Statistics Methodology, http://www.whocc.no/atc_ddd_index/?code=D09 ^ ATCvet
combinations) ^ ATC/DDD Index 2014: code D08, WHO Collaborating Centre for Drug Statistics Methodology, http://www.whocc.no/atc_ddd_index/?code=D08 ^ ATCvet